Product Air Heating, Cooling, and Electric Explains Washington’s Dec. 31 Electrical Code Change Ahead of 2027 Home Projects

Product Air Heating, Cooling, and Electric explains Washington's December 31, 2026 transition to the 2026 National Electrical Code, outlining what homeowners should consider when planning electrical upgrades, EV chargers, and heat pumps, and why lawfully installed existing systems can remain in service.

Marysville, United States, October 14, 2026 -- Washington will replace the 2023 National Electrical Code with the 2026 edition on December 31, affecting permits for new electrical work while leaving lawfully installed existing systems in place.

Washington homeowners planning electrical upgrades, remodeling work, EV charger installations, or heat pump projects should pay attention to one date: December 31, 2026.

Washington will replace the 2023 edition of the National Electrical Code with the 2026 edition on that date. Product Air Heating, Cooling, and Electric is encouraging homeowners to understand what the change means for upcoming projects and what it does not mean for electrical systems already in their homes.

WAC 296-46B-010 establishes December 31 as the effective date for the 2026 National Electrical Code, NFPA 70-2026, in Washington. The electrical permit date generally determines which code edition applies, with specific exceptions for certain new residential construction and installations that require plan review. Similar projects could therefore fall under different code editions depending on when their permits are issued. Homeowners beginning a remodel or electrical upgrade near the end of 2026 should confirm which edition will govern the work before the project starts.

The new code does not require homeowners to replace existing electrical systems simply because they were installed under an earlier edition. Washington rules allow lawfully installed electrical systems to remain in service when they complied with the requirements in effect at the time of installation. New additions, alterations, modifications, and repairs must meet the requirements that apply to the new work.

“Homeowners don't need to panic about wiring that's already in place,” said Serg Nikolin, co-owner of Product Air. “The important questions are what you're adding, which code applies to the permit, and whether the electrical system already in the home can safely support the new load.”

EV chargers and heat pumps can make panel capacity an important part of project planning because both can add substantial electrical demand. Neither project automatically means that a home needs a new electrical panel. An electrician first needs to evaluate the existing service, available panel capacity, proposed equipment, and additional electrical load. The existing system may have enough capacity, and a new circuit may be all that is required. A load calculation may also show that the existing service cannot safely support the additional demand.

Nikolin said Product Air encounters this issue more often when homeowners add larger electrical loads, particularly in older homes. He explained that upgrading a panel from 100 amps to 200 amps is not something the company recommends routinely. The need depends on the house, existing equipment, available capacity, and what the homeowner plans to add. He specifically identified EV chargers as one of the projects that can reveal an existing capacity limitation.

Product Air Heating, Cooling, and Electric has also encountered projects where its technician was the only contractor to tell the homeowner that the existing panel needed to be upgraded before the planned work could be completed safely. Nikolin said one homeowner chose Product Air because the company explained the limitation rather than simply connecting the new equipment to the existing service. That approach reflects a broader concern Nikolin raised about residential electrical work. He emphasized the importance of permits and inspections and discussed the risks created by improperly completed DIY electrical modifications.

Nikolin described a recent visit to a home built in 2004 where the laundry circuit did not have the GFCI protection he expected to see for the washing machine. He said electricians often encounter similar problems after previous DIY work because homeowners or landlords may replace a more expensive protective receptacle with a standard outlet without understanding why that protection was installed.

Washington generally requires permits for electrical installation, repair, and replacement work. The Washington State Department of Labor & Industries or a local jurisdiction with its own electrical inspection program performs the required inspections. Product Air recommends that homeowners planning work near the December transition confirm which code edition will apply to the permit, whether the existing service has enough capacity for the planned equipment, and who will obtain the permit and schedule the inspection.

Nikolin also recommends an independent electrical evaluation for homeowners considering a home purchase or major renovation rather than assuming that previous work was completed correctly. He said he had recently visited approximately 10 homes and found evidence of DIY electrical work in each of them, including work he considered unsafe. He also said an electrician performing an inspection should document problems rather than omit inconvenient findings from a report.

“Electrical work is one of those areas where something can look normal from the outside and still have a problem behind it,” Nikolin said. “Our job is to show the homeowner what is there, explain what needs attention, and give them enough information to make the right decision.”

Washington is separately considering state-specific amendments associated with implementation of the 2026 NEC. Those amendments remain in the rulemaking process as of October 2026 and should not be confused with the already adopted December 31 transition to the new NEC edition. Homeowners planning work later this year should rely on the requirements in effect when their permit is issued rather than assuming that a proposed rule has already become final.

Product Air Heating, Cooling, and Electric can review a home's electrical service and panel capacity as part of planning for upgrades and new equipment. More information is available through the company's electrical services, electrical panel upgrades and replacements, EV charger installation, and heat pump installation pages.

About Product Air Heating, Cooling, and Electric

Product Air Heating and Cooling LLC, operating publicly as Product Air Heating, Cooling, and Electric, is a family-owned HVAC and electrical contractor founded in 2017 by brothers Sergey, Eli, and Rob Nikolin. The company serves homeowners across Western Washington from headquarters in Marysville with branches in Issaquah and Seattle, covering more than 34 cities across Snohomish, King, and Skagit counties. Its team provides heat pump, furnace, air-conditioning, ductless, and residential electrical services. HVAC equipment and parts are supplied through regional distributor Gensco, with inventory maintained at Product Air warehouses in Marysville and Seattle.

Contact Info:
Name: Serg Nikolin, Co-Owner
Email: Send Email
Organization: Product Air Heating, Cooling, and Electric
Address: 103 Cedar Ave, Unit B Marysville, WA 98270, United States
Phone: 425-344-3738
Website: https://productairheating.com/

Release ID: 89206072

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